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maxrohleder/to_stl.py

Created August 2, 2022 08:34
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snippet to convert a binary volume to an stl surface mesh
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to_stl.py
from skimage import measure
from stl import mesh
def to_stl(fname, vol):
assert np.alltrue(np.isin(vol, [1, 0])), "volume must be binary"
verts, faces, _, _ = measure.marching_cubes_lewiner(vol)
m = mesh.Mesh(np.zeros(faces.shape[0], dtype=mesh.Mesh.dtype))
for i, f in enumerate(faces):
for j in range(3):
m.vectors[i][j] = verts[f[j], :]
m.save(fname)
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